scripts/simplebench/table_templater.py

   1 # Parser for test templates
   2 #
   3 # Copyright (c) 2021 Virtuozzo International GmbH.
   4 #
   5 # This program is free software; you can redistribute it and/or modify
   6 # it under the terms of the GNU General Public License as published by
   7 # the Free Software Foundation; either version 2 of the License, or
   8 # (at your option) any later version.
   9 #
  10 # This program is distributed in the hope that it will be useful,
  11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 # GNU General Public License for more details.
  14 #
  15 # You should have received a copy of the GNU General Public License
  16 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17 #
  18
  19 import itertools
  20 from lark import Lark
  21
  22 grammar = """
  23 start: ( text | column_switch | row_switch )+
  24
  25 column_switch: "{" text ["|" text]+ "}"
  26 row_switch: "[" text ["|" text]+ "]"
  27 text: /[^|{}\[\]]+/
  28 """
  29
  30 parser = Lark(grammar)
  31
  32 class Templater:
  33     def __init__(self, template):
  34         self.tree = parser.parse(template)
  35
  36         c_switches = []
  37         r_switches = []
  38         for x in self.tree.children:
  39             if x.data == 'column_switch':
  40                 c_switches.append([el.children[0].value for el in x.children])
  41             elif x.data == 'row_switch':
  42                 r_switches.append([el.children[0].value for el in x.children])
  43
  44         self.columns = list(itertools.product(*c_switches))
  45         self.rows = list(itertools.product(*r_switches))
  46
  47     def gen(self, column, row):
  48         i = 0
  49         j = 0
  50         result = []
  51
  52         for x in self.tree.children:
  53             if x.data == 'text':
  54                 result.append(x.children[0].value)
  55             elif x.data == 'column_switch':
  56                 result.append(column[i])
  57                 i += 1
  58             elif x.data == 'row_switch':
  59                 result.append(row[j])
  60                 j += 1
  61
  62         return ''.join(result)